Device for conveying motion



2 Sh eetsSheet 2.

(No Model.) v J. J-. GREENOUGH.

. DEVICE FOR GONVEYINGMOTION.

Patented Feb. 15, 1887.

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TATES ATENT Prion.

J OHN J. GREEN OUGH, OF SYRACUSE, NEW YORK.

DEVICE FOR CONVEYING MOTION.

SPECIFICATION forming part of Letters Patent No, 357,593, dated February 15, 1887.

Application filed September 1, 1885. Serial No.175,876. (No model.)

To all whom it may concern: Be it known that I, JOHN J. GREENOUGH, of Syracuse, Onondaga county, State of New York, have invented certain new and useful improvements in devices for conveying motion from a driving-power to a working-tool held in any position and readily movable to any place within reach of the driving-power.

The following is a description thereof.

My invention relates to the driving of any revolving toolsuch as a drill, brush, or polisher-so that it can be moved about through an expanded range and held and worked at any angle to a vertical or horizontal plane, which is effected by a simple device that is durable and easily and cheaply repaired. I attain these objects by the mechanism shown in the accompanying drawings, in whiol1 Figures 1 1 are elevations of the entire apparatus for an extended range of action. Fig. 2 is a side view of the pendulum-tool carrier. Fig. 3 shows the pendulum-pulley block, top view. An elevation, with the front of the block Fig. 4 shows the pulley-block F, with hinged cheek, represented The same letters of reference are used to designate like parts in all the figures.

The device shown in Figs. 1, 2 is suspended by hangers from an overhead support, either stationary or, as in Fig. 1, attached to a rail, B, so as to slide along into different places. In this case I place adriving-pulley, X, atone end of the rail, the shaft of which is turned by' belt and pulley from the motor, and at the opposite end of the rail B there is a carryingpulley, X, with guide-pulleys Y, for carrying the driving-belt T, which runs parallel with the rail R around them. This belt T makes a turn (not shown) around the pulley on the shaft S, on which the pendulumpulley centers, by which the pulley P is revolved when at any point along the rail R. .If the shaft S is hung in stationary bearings, a belt is run directly to the fixed pulley thereon from the motor.

The pulley P has two grooves in its rim, preferably V shaped, to receive an endless belt, D, that passes around it, and thence descends to an idler-pulley, E, into which it is rove,

and thence up around pulley P in its other groove, from which it descends to the lower or pendulum-pulley block, F, whence it passes up to the pulley P. By this reeving of the endless belt the idler-pulley E and pulleyblock F are hung and balanced upon the pulley P, so that as one rises the other descends, while their weight keeps belt D tight.

Centered at the shaft S is an arm, I, suspended on the hangers, on which it turns parallel with the plane of pulley P. Attached to this arm are roller-guides G, that direct the belt D into the grooves on the pulley P, however much it is deflected below from a line with it.

A rod or tube, K, is attached to the lower end of the arm I by a rule-joint, or otherwise, so as to be kept in a plane with it, while it can be swung laterally either Way any distance required. On this tube the idler-pulley block E slides, being connected therewith by arms E, through which the rod K passes. This block is weighted at W to aid in counterbalancing the pendulum-block F. The lower part of the rod K may be made to telescope into the upper tubular part to shorten its length, and thus increase the range of the motion of the pendulum-block F. The lower end of the rod is joined to the pendulum-block, as seen in the drawings This combinationof the pendulumblock F with the pulley P steadies and directs its movements relatively to said pulley with precision, keeping the parts inline and insuring the proper working of the belt and other parts.

The lower or pendulum block, F, is of peculiar construction to allow it freedom of motion and to protect and guide the belt into the grooves in the pulleys when running at an angle. It consists of a driven pulley, F, (see Figs. 1, 2, 3,) within the case or block F, above which are two guide-pulleys, F", in the same plane, that cause the belt to bind around the pulley F on each side, and a little above the pulleys F are two pulleys, F, with their axes at right angles to the pulleys F These pulleys F guide the belt running into the groove in pulleys F and prevent it chafing or jumping the small pulleys F when the pulley-block is inclined to the line of the rod K. The shaft or spindle L of the pulley F projects through a long bearing in the shell or block F, and extends out to form a toolholder or hold an additional toolj oint coupled therewith. This spindle is inclosed in a tube affixed firmly to the long bearing above named that supports the end of the spindle by a bearing therein. This tube serves as a handle to hold and direct the position of the workingtool and pend ulum-block F.

In cases Where I desire to shift the belt D from an open belt to a cross-belt, or the reverse, on pulley F in the pendulum-block F, I form the block as seen in Fig. 4. hinging the cheek of the block over pulley F on the side opposite the tool-spindle, so as to be opened out, as shown by the dotted lines. The open belt D is then slipped off of pulley F and crossed and put on the pulley again and the cheek closed and fastened below. In this way I can reverse the motion of the spindle without reversing the motion of the pulley D.

By the apparatus thus constructed I am onabled to hold and revolve a tool in any position relative to the obj ect to be operated upon.

Having thus described my new and useful improvement for driving tools in varied positions, I claim- 1 1. The combination of a pendulum-pulley with a driving-pulley, said pulleys being driven by a driving-belt, and a pendent rod, to one end of which the pendulous pulley is attached, said rod being pivoted at its opposite end to a point coincident, or nearly so, with the shaft of the driving-pulley.

2. The combination of an idler pulley, E, with a pendent pulley, F, a driving pulley, P, and an endless belt, D, by which the pendent pulley is suspended from the driving-pulley, substantially as and for the purposes specified.

3. The combination of the arm I and rod K, so jointed together as to move in a radial plane, as described, with the pendulum-pulley block F and driving-pulley P, as described.

4. The combination of a pendulum-pulley block, F, pulley P, and idlerpulley E with the vibrating arm I, rod K, and belt D, as and for the purposes specified.

5. The pulley-block F, constructed substantially as herein described, having a perma nent independent bearing in one cheek for the tool-shaft and an opening in the other check, as described, for shifting the belt, as and for the purposes specified.

6. The combination of the arm I, provided with guiderollers G, the pulley I, cord D, and pendulum-pulley F, by which they are held in proper position, for the purposes specified.

J. J. GREENOUGH.

IVitnesses:

T. E. HANCOCK, H. D. BURRILL. 

